Daniel Bedeleanu
ea49cd6e4a
- Create backend/services/image_storage.py with 4 core functions:
- sanitize_filename(): remove unsafe chars, limit to 255 chars, convert to lowercase
- get_unique_filename(): handle collisions with UUID suffix (format: {name}_{uuid8}_{variant}.jpg)
- ensure_image_directories(): create /images/ root and category subdirs on startup
- save_image(): save bytes to /images/{category}/{filename}, returns relative path
- Create comprehensive test suite (22 tests) covering all functionality
- Integrate ensure_image_directories() into FastAPI startup event
- Directory structure: /images/{category}/{filename}
- Collision handling: auto-suffix with UUID if filename exists
- All tests passing, pathlib.Path for safe operations
81 lines
2.3 KiB
Python
81 lines
2.3 KiB
Python
# This file is being contributed to pyasn1-modules software.
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#
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# Created by Russ Housley with assistance from asn1ate v.0.6.0.
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#
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# Copyright (c) 2019, Vigil Security, LLC
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# License: http://snmplabs.com/pyasn1/license.html
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#
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# Multicast Email (MULE) over Allied Communications Publication 142
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#
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# ASN.1 source from:
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# https://www.rfc-editor.org/rfc/rfc8494.txt
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from pyasn1.type import namedtype
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from pyasn1.type import namedval
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from pyasn1.type import tag
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from pyasn1.type import univ
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id_mmhs_CDT = univ.ObjectIdentifier('1.3.26.0.4406.0.4.2')
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class AlgorithmID_ShortForm(univ.Integer):
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pass
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AlgorithmID_ShortForm.namedValues = namedval.NamedValues(
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('zlibCompress', 0)
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)
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class ContentType_ShortForm(univ.Integer):
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pass
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ContentType_ShortForm.namedValues = namedval.NamedValues(
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('unidentified', 0),
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('external', 1),
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('p1', 2),
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('p3', 3),
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('p7', 4),
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('mule', 25)
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)
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class CompressedContentInfo(univ.Sequence):
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pass
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CompressedContentInfo.componentType = namedtype.NamedTypes(
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namedtype.NamedType('unnamed', univ.Choice(componentType=namedtype.NamedTypes(
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namedtype.NamedType('contentType-ShortForm',
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ContentType_ShortForm().subtype(explicitTag=tag.Tag(
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tag.tagClassContext, tag.tagFormatSimple, 0))),
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namedtype.NamedType('contentType-OID',
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univ.ObjectIdentifier().subtype(explicitTag=tag.Tag(
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tag.tagClassContext, tag.tagFormatSimple, 1)))
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))),
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namedtype.NamedType('compressedContent',
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univ.OctetString().subtype(explicitTag=tag.Tag(
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tag.tagClassContext, tag.tagFormatSimple, 0)))
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)
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class CompressionAlgorithmIdentifier(univ.Choice):
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pass
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CompressionAlgorithmIdentifier.componentType = namedtype.NamedTypes(
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namedtype.NamedType('algorithmID-ShortForm',
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AlgorithmID_ShortForm().subtype(explicitTag=tag.Tag(
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tag.tagClassContext, tag.tagFormatSimple, 0))),
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namedtype.NamedType('algorithmID-OID',
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univ.ObjectIdentifier().subtype(explicitTag=tag.Tag(
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tag.tagClassContext, tag.tagFormatSimple, 1)))
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)
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class CompressedData(univ.Sequence):
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pass
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CompressedData.componentType = namedtype.NamedTypes(
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namedtype.NamedType('compressionAlgorithm', CompressionAlgorithmIdentifier()),
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namedtype.NamedType('compressedContentInfo', CompressedContentInfo())
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)
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